hey the other day my girlfriend gave me a handjob and i cleaned up the semen afterwards. we both had it on our hands, but we used hand sanitizer after. like 2 minutes later i started to finger her, and i was just wondering if hand sanitizer would have killed all the sperm, and if theres any chance of her getting pregnant from me fingering her.

If there is a chance, it is extremely little that she could get pregnant from that. Sperm die quickly when exposed to an environment not designed for it. Air hitting sperm is enough to kill it. And 2 minutes.... I think you have nothing to worry about.